Key West, FL

Weather Forecast Office

NWS Key West

Click a location below for detailed forecast.

Last Map Update: Thu, Oct 22, 2026 at 8:10:21 am EDT

Watches, Warnings & Advisories

National Weather Service National Weather Service

National Weather Service Tampa Bay Area, FL

National Weather Service Miami - South Florida

Zoom Out

Coastal Flood Advisory

Small Craft Advisory

Rip Current Statement

Coastal Flood Statement

Probability for Very Windy Conditions This Weekend

Coastal Flood Advisory: Upper Keys

Subtropical Storm Josephine

Island Chain

Marine Winds

Wave Heights

Another generally quiet day expected today with mostly sunny skies, near nil rain chances Middle and Lower Keys with a slight chance for the Upper Keys. Gentle to moderate N-NE breezes slacken this afternoon with another surge possible tonight into early Friday morning. The big weather concern will be the potential for very windy conditions this weekend. The probabilities of seeing wind speed >25 mph is shown to the right with the table. A Coastal Flood Advisory remains in effect for the Upper Keys through early Friday. A Coastal Flood Statement remains in effect for the Middle and Lower Keys through early Friday.

Coastal Flood Advisory in effect for the Upper Keys! Coastal Flood Statement in effect for the Lower and Middle Keys! Through Friday morning, saltwater flooding of low elevation streets and lots is expected, with some roads being impassable or saltwater unavoidable. Some storm drains will overflow & some seawalls/docks will be overtopped. Boaters should also expect less clearance under fixed bridges.

The National Hurricane Center has initiated advisories on Subtropical Storm Josephine, located about 195 miles south-southeast of Nantucket, Massachusetts as of 5 AM EDT. Maximum sustained winds were around 65 mph, with higher gusts, and movement was to the north at 13 mph. Josephine is forecast to turn northeast and away from the U.S.

***A COASTAL FLOOD ADVISORY REMAINS IN EFFECT FOR THE UPPER KEYS*** ***A COASTAL FLOOD STATEMENT REMAINS IN EFFECT FOR THE LOWER & MIDDLE KEYS*** UPPER KEYS: TODAY: Mostly sunny with a slight chance of showers. Highs in the lower 80s. North to northeast winds 10 to 15 mph early, decreasing to near 5 mph late this morning and early afternoon, then increasing to near 10 mph late. Chance of rain 10 percent. MIDDLE AND LOWER KEYS: TODAY: Mostly sunny. Highs in the lower 80s. North to northeast winds near 5 mph early, increasing to 10 to 15 mph this morning, then decreasing to 5 to 10 mph during the afternoon.

TODAY: Gentle to moderate N-NE breezes, except becoming light breezes FL Bay this afternoon. Seas: Bay/Gulfside 1-2 ft, except W of the Marquesas 2-3 ft; Hawk Channel 1-2 ft, except W of Cosgrove 2-3 ft; FL Straits 2-4 ft, ocsnl 5 ft; SE Gulf 2-4 ft, ocsnl 5 ft. Bay / nearshore waters a light to moderate chop, except becoming smooth FL Bay. A slight chance of showers Florida Bay, E Hawk Channel, and E FL Straits.

TODAY: Gentle to moderate N-NE breezes, except becoming light breezes FL Bay this afternoon. Seas: Bay/Gulfside 1-2 ft, except W of the Marquesas 2-3 ft; Hawk Channel 1-2 ft, except W of Cosgrove 2-3 ft; FL Straits 2-4 ft, ocsnl 5 ft; SE Gulf 2-4 ft, ocsnl 5 ft. Bay / nearshore waters a light to moderate chop, except becoming smooth FL Bay. A slight chance of showers Florida Bay, E Hawk Channel, and E FL Straits.

Text Product Selector

(Selected product opens in a new window)

Subtropical Storm Josephine Impacts the Eastern Seaboard; Pacific Storm Impacting the Southwest U.S.

NWS Key West